Information-oriented technical descriptions of CQL's APIs, configuration options, and database-specific features. Use this section when you need to look up exact syntax, method signatures, or configuration values.
Comprehensive documentation of CQL's classes and methods:
- Model Methods - Instance and class methods available on Active Record models
- Query Methods - Methods for building and executing queries
- Schema DSL - Schema definition language reference
- Migration DSL - Migration definition language reference
- Validation Options - All available validation types and options
- Callback Hooks - Lifecycle callbacks reference
- Configuration Options - All configuration settings
Database-specific features and considerations:
- PostgreSQL - PostgreSQL-specific features and types
- MySQL - MySQL-specific features and types
- SQLite - SQLite-specific features and limitations
- Quick Reference Card - Common operations at a glance
- Glossary - CQL terminology and definitions
- Error Codes - Common errors and their meanings
Want to understand why things work this way? Visit the Explanation section for conceptual discussions.